usArmPosType (USHORT)

      Format attribute.

      Attribute that identifies the format in which the information should be returned if the slider arm position is requested. This value is ignored for all other queries and is one of the following:

      SMA_RANGEVALUE

        The value returned in the low order word represents the number of pixels between the home position and the current arm position. The high order word represents the pixel count of the entire range of the slider control.
      SMA_INCREMENTVALUE
        The value returned represents an increment position using the primary scale.


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